Yet in recent years, the presence of yoga has grown in the NFL. The fast-paced, hard-hitting sport has accepted the more calming practice that emphasizes conscious breathing and body flow. Much like yin and yang, the two complement each other both mentally and physically.
“Obviously (yoga) helps with flexibility, what we call join integrity, discipline, focus and balance,” said Los Angeles Chargers Director of Football/Medical Services James Collins, an NFL athletic trainer for 31 years. “It has a lot of different entities to it. And one thing about professional football players is that if you explain something to them and give them the science and reasoning behind it, you can get them to buy into it.”
source - https://www.denverpost.com/2018/08/17/nfl-players-yoga-practice/